Athens: Archaeologists armed with top-notch technology have scoured one of the richest shipwrecks of antiquity for overlooked treasures, recovering a scattering of artefacts amid indications that significant artworks may await discovery under the seabed.

Lying metres down a steep underwater slope off Antikythera Island, in southern Greece, the Roman commercial vessel’s wreck was accidentally located by sponge divers more than a century ago.